

There is some controversy about whether _no_ -adjectives exist.

I have chosen a random _no_ -adjective (not having another meaning as noun):
[丸腰]{まるごし}

Sentence with this word with case particle:

> 丸腰を見る

Is this sentence grammatically correct?

If this sentence is grammatically incorrect, then _no_ -adjectives must exist
as syntactically distinct group from ordinary nouns.

If this sentence is grammatically correct, then what is meaning of this
sentence? Would it be understood as something with implicit の + 人 / 者 / 物 etc.
(e.g. 丸腰の人を見る)?


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syntax particle-の nouns
丸腰を見る and no-adjectives


丸腰を見る usually makes little sense; you can see someone's unarmed status, but
you cannot see "unarmed" itself. Canonically, you should say (誰かが)丸腰のところを見る
instead. Still, in casual conversations, people might occasionally say 丸腰を見る
instead of 丸腰のところを見る. The same applies to 普通(であること)を確かめる, 最高(の瞬間)を思い出す, and so
on; the part in the parentheses may be dropped sometimes in sloppy speech or
aesthetic writing.

Still, even if 丸腰を見る is ungrammatical, whether to call 丸腰 a "no-adjective" or
a "descriptive noun" is a different issue.

* * *

Whether or not one acknowledges the existence of "no-adjectives" depends on
the grammatical framework they rely on. I don't have a strong opinion either
way. When someone who is no longer a beginner asks me "How many types of
adjective are there in Japanese?", I usually respond with " **0** , 1, 2, or
3, depending on your definition". (Yes, some say [i-adjectives are actually
verbs](https://japanese.stackexchange.com/a/1016/5010), and there's a reason
for that!)

Note that "no-adjective" is not the only thing that doesn't exist in so-called
国語文法 learned in Japanese school. For example, in 国語文法, they don't recognize
"te-form", "progressive form" and "past form", either.

Still, I understand that these terms are useful for learners, and they are
used in most Japanese-as-a-second-language learning resources. From a
practical point of view (esp. of western speakers), there is little difference
between so-called na-adjectives and so-called no-adjectives aside from the
particle used. That's why I use these terms at least for beginners and
intermediate learners. If you needed to memorize an [entire table of auxiliary
verbs](https://ja.wikipedia.org/wiki/%E5%8A%A9%E5%8B%95%E8%A9%9E_\(%E5%9B%BD%E6%96%87%E6%B3%95\))
just to say something simple like 食べていました, learning Japanese as a second
language would become quite inconvenient.


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I think you are misunderstanding several things.

First off, grammatical correctness does not imply meaningfulness as shown by
[the classic
example](https://en.wikipedia.org/wiki/Colorless_green_ideas_sleep_furiously)
(and vice versa, almost trivially. We are using lots of grammatically
incorrect sentences and understand each other in most cases).

The sentence

> 丸腰を見る

is a grammatically correct but meaningless sentence. It is just the same as
病気を見る is (at least) weird. Generally there is nothing similar to _the sick (=
sick people)_ in English, if that's what you had in mind.

* * *

Regarding no-adjective, a grammatical category (such as na-adjective or no-
adjective) is a stipulation, so there's no definite answer as to its
'existence'. It is just a matter of how useful it is.

Consider _na_ -adjective instead, for which there was actually a controversy
(I have no idea how much it's settled, but na-adjective is standardly taught
in Japanese school grammar).

Now think about the phrase

  * 有名の人

For those who accept na-adjective, this phrase is ungrammatical because 有名 is
na-adjective and の should be な here.

On the other hand, for those who don't accept na-adjective, it **is** a
grammatical sentence (because 有名 is just a noun and there is nothing wrong
with 'noun + の'), but just not idiomatic.

So, at least as far as the above phrase is concerned, the unacceptability of
有名の人 doesn't imply anything.

Likewise, thinking that 丸腰を見る is ungrammatical implies you are stipulating no-
adjective. Not the other way round. (Or at least, claiming no-adjective just
by this example is not well founded).

* * *

I don't look up anything about no-adjective and never heard of it, but I guess
it is just for an explanation following the thought like below:

  * Some nouns have adjective-like meaning (丸腰, 有名)
  * 有名 is followed by な to connect to nouns, hence _na_ -adjective.
  * 丸腰 is followed by の, hence _no_ -adjective.

There does seem to exist research on な/の difference in Japanese linguistics. I
stumbled on [this article](https://cir.nii.ac.jp/crid/1050845763705572608)
which has the following chart.

[![enter image description
here](https://i.stack.imgur.com/6ZjSe.png)](https://i.stack.imgur.com/6ZjSe.png)

They are not inverse proportional, but anyway semantically similar enough
words require different particles な/の. Thus _no_ -adjective was invented as
opposed to na-adjective.

* * *

FYI. Regarding replaceability with である, the best I've found is
[瀕死の重傷](https://dictionary.goo.ne.jp/word/%E3%81%AE/#jn-171157) in the sense
that 瀕死 is adjectival enough but cannot be replaced by である (重傷は瀕死である is
nonsense).


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